header {
    background-color: #FF6040;
    overflow: hidden;
}

header .middle {
    background-color: white;
    margin: 0.2rem auto;
    line-height: 0.32rem;
    border-radius: 0.4rem;
    padding: 0.1rem 0.2rem;
    width: 62vw;
}

header .middle input {
    margin: 0.1rem 0;
    width: 3rem;
}
header .middle span{background-color: #FF755E; padding: 0.1rem 0.2rem; border-radius: 1rem; color: white;} 
main .banner{display: flex; justify-content: space-evenly; text-align: center;}
main .banner img{width: 1.5rem; height: 1.5rem;}
main{padding-bottom: 1rem;}